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Advanced rotor bar testing with surface magnetic field measurements

  • April 2018
  • Number of views: 956
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Scott Clark, Ph.D., P.E.
Brandon & Clark, Inc.

Traditional rotor bar defect detection systems are often insufficient in sensitivity, record-ability and numerical analysis of test results. Many means of rotor defect detection require the motor to be fully assembled with a functional stator. These limitations have laid the groundwork for the development of a new rotor defect detection technique.

A new method termed Rotor Magnetic Field Analysis (RMFA) extends traditional induction motor rotor testing techniques with precision magnetic field measurements and data processing tools. This is the first new technology in rotor testing in more than three decades.

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